High efficiency >26 W diode end-pumped Alexandrite laser

High efficiency >26 W diode end-pumped Alexandrite laser

We show for the first time that multi-ten Watt operation of an Alexandrite laser can be achieved with direct red diode-pumping and with high efficiency. An investigation of diode end-pumped Alexandrite rod lasers demonstrates continuous-wave output power in excess of 26W, more than an order of magni...

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Veröffentlicht in:Optics express 2014-06, Vol.22 (13), p.16386-16392
Hauptverfasser: Teppitaksak, Achaya, Minassian, Ara, Thomas, Gabrielle M, Damzen, Michael J
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container_title Optics express
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creator Teppitaksak, Achaya
Minassian, Ara
Thomas, Gabrielle M
Damzen, Michael J
description We show for the first time that multi-ten Watt operation of an Alexandrite laser can be achieved with direct red diode-pumping and with high efficiency. An investigation of diode end-pumped Alexandrite rod lasers demonstrates continuous-wave output power in excess of 26W, more than an order of magnitude higher than previous diode end-pumping systems, and slope efficiency 49%, the highest reported for a diode-pumped Alexandrite laser. Wavelength tuning from 730 to 792nm is demonstrated using self-seeding feedback from an external grating. Q-switched laser operation based on polarization-switching to a lower gain axis of Alexandrite has produced ~mJ-pulse energy at 1kHz pulse rate in fundamental TEM(00) mode.
doi_str_mv 10.1364/OE.22.016386
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title High efficiency >26 W diode end-pumped Alexandrite laser
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